 /*******************************************************************************
  * Copyright (c) 2000, 2006 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.ui.internal;

 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;

 /**
  * A PlaceHolder is a non-visible stand-in for a layout part.
  */
 public class PartPlaceholder extends LayoutPart {

     /**
      * Placeholder ids may contain wildcards. This is the wildcard string.
      *
      * @since 3.0
      */
     public static String WILD_CARD = "*"; //$NON-NLS-1$

     public PartPlaceholder(String id) {
         super(id);
     }

     /**
      * Creates the SWT control
      */
     public void createControl(Composite parent) {
         // do nothing
 }

     /**
      * Get the part control. This method may return null.
      */
     public Control getControl() {
         return null;
     }

     /**
      * Returns whether this placeholder has a wildcard.
      *
      * @since 3.0
      */
     public boolean hasWildCard() {
         return getID().indexOf(WILD_CARD) != -1;
     }
 }

